<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜做内容 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="8">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column prop="username" label="姓名"> </el-table-column>
        <el-table-column prop="email" label="邮箱"> </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- 开关  有了这个上面的 prop不再生效-->
            <!-- 拿到这一行的数据 -->
            <el-switch
              v-model="scope.row.state"
              @change="userStateChanged(scope.row)"
            >
              <!-- 把这一行数据传到userStateChanged -->
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <template slot-scope="scope">
            <!-- 修改按钮 通过scope.row.id来查询用户-->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 4]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户   监听表单的close事件-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="密码">
          <!-- prop是校验规则 -->
          <el-input v-model="editForm.password" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的角色:{{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <!-- 分配角色下拉菜单 -->
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import {
  registerUsername,
  registerPassword,
  registerEmail,
  registerTelephone,
} from "../../vaildate";
export default {
  name: "User",
  data() {
    return {
      //   获取用户列表的参数对象
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      //   控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //   添加用户
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //   添加表单验证
      addFormRules: {
        uername: [{ validator: registerUsername, trigger: "blur" }],
        password: [{ validator: registerPassword, trigger: "blur" }],
        email: [{ validator: registerEmail, trigger: "blur" }],
        mobile: [{ validator: registerTelephone, trigger: "blur" }],
      },
      //   控制字修改用户对话框的显示与保存
      editDialogVisible: false,
      //   查询到的用户信息对象保存  都在这查
      editForm: {},
      // 修改用户对象的校验规则
      editFormRules: {
        email: [
          { required: true, message: "请输入用户邮箱", trigger: "blur" },
          { validator: registerEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入用户手机", trigger: "blur" },
          { validator: registerTelephone, trigger: "blur" },
        ],
      },
      // 控制分配角色对话框显示与隐藏
      setRoleDialogVisible: false,
      //   需要被分配角色的用户信息
      userInfo: {},
      //   所有角色的数据列表
      rolesList: [],
      //   已选中的下拉id值
      selectedRoleId: "",
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize);
      this.queryInfo.pagesize = newSize; //调用一下这个，重新赋值
      this.getUserList(); //重新获取数据 发起请求
    },
    // 监听页码值
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关状态的改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        // 没取到返回
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("更新用户状态失败");
      }
      this.$message.success("更新用户成功");
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        // 可以添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败");
        }
        this.$message.success("添加成功");
        // 隐藏添加用户的对话框
        this.addDialogVisible = false;
        // 重新获取列表数据
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id);
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("请求用户失败");
      }
      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    // 监听用户修改框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户信息并验证
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) {
          return;
        }
        // 发起修改用户的预验证
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败");
        }
        //    刷新数据列表
        this.getUserList();
        //    提示修改成功
        this.$message.success("修改用户信息成功");
        //    关闭对话框
        this.editDialogvisible = false; //有问题
      });
    },
    // 根据id删除对应的用户信息
    async removeUserById(id) {
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => {
        return err;
      }); //捕获错误消息并return出去
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消了删除，则返回值为字符串 cancel
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消了删除");
      }
      const { data: res } = await this.$http.delete("user/" + id); //就是在修改用户里取到的id
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
      }
      this.$message.success("删除用户成功");
      // 刷新一下数据
      this.getUserList(); //有问题
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      // 获取用户信息 并保存在data中
      this.userInfo = userInfo;

      // 展示对话框前，获取所有的角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表失败");
      }
      this.rolesList = res.data;

      this.setRoleDialogVisible = true;
    },
    // 点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }

      const { data: ref } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectedRoleId }
      );
      if (ref.data.status !== 200) {
        return this.$message.error("分配角色失败");
      }
      this.$message.success("更新角色成功");
      // 刷新当前用户列表
      this.getUserList();
      // 隐藏对话框
      this.setRoleDialogVisible = false;
    },
    // 监听角色分配对话框的关闭事件 就是清空分配框
    setRoleDialogClosed() {
      this.selectedRoleId = "";
      this.userInfo = {};
    },
  },
};
</script>
<style scoped>
</style>